2008 Honda Aquatrax ARX1500T3/T3D factory service manual, Page 263Get this manual
CYLINDER HEADIVALVE VALVE SPRING Measure each valve spring free lengthSERVICE LIMIT: INIEX: 41.5 (1.63 in)
VALVEIVALVE GUIDE Check that the valve moves smoothly in the guideCheck the valve for bends, burns or abnormal wearMeasure each valve stem O.Dand record itSERVICE LIMITS: IN: 4.965 (0.1955 in) EX: 4.950 (0.1949 in)
Ream the guides to remove any carbon deposits before measuring the guideInsert the reamer from the combustion chamber side of the head and always rotate the reamer clockwiseTOOL: Valve guide reamer, 07984-MA60001 or 07984-MA6000D or 07984-MA6000C (U.S.Aonly)
GUIDE REAMER Measure each valve guide I.Dand record itSERVICE LIMIT: INIEX: 5.040 (0.1984 in) Subtract each valve stem O.Dfrom the corresponding guide I.Dto obtain the stem-to-guide clearanceSTANDARDS: IN: 0.0100.037 (0.00040.0015 in) EX: 0.0250.052 (0.00100.0020 in)